Just purchased the i15 after trying about 5 other drivers and narrowing down which shaft to choose. I ended up going with a Project X shaft on this club. It gives me good forgiveness, but still allows me to shape drives that play to the hole. I am a longer hitter of 300+, so this was a big decision to make to find a club that allows me for better accuracy off the tee. I am pleased with my pick of this driver other than the fact it is more than I have ever spent on a single club. I hope it drops some strokes by improving accuracy off the tee!